Assignment:
The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table shows the results of five different samples of walk-coolers that were produced in the previous month. There are 3 units in each sample.
a. Assume that only these five samples are sufficient, and use the data to determine control limits for an R- and X bar charts.
b. Is this process in control Plot the R and X bar charts.
